/**
 * Created by admin on 2017/4/20.
 */
var oc = new ObjectControl();
var code;
function createCode() { //随机生成验证码
    code = "";
    var codeLength = 4; //验证码的长度
    var checkCode = document.getElementById("checkCode");
    var codeChars = new Array(2, 3, 4, 5, 6, 7, 8, 9,
        'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'm', 'n', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
        'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'); //所有候选组成验证码的字符，当然也可以用中文的
    for (var i = 0; i < codeLength; i++) {
        var charNum = Math.floor(Math.random() * 52);
        console.log(charNum);
        code += codeChars[charNum];
    }
    if (checkCode) {
        checkCode.innerHTML = code;
    }
}
createCode();